gas gauge

I have had my blue & silver Smart passion cab for almost one mopnth & I love it. Actually had the top down last weekend (with the heat blasting).
Anyway, I wondering what's going on with the gas gauge. When I fill up the car, the gauge never reads a full tank (until the next morning). Is this a problem with all smarts & can it be fixed?

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My 'Egg' has been doing this as well. Although it isn't with every fill up. It does seem to resolve itself eventually and read correctly after a couple of gallons. Very odd. I plan on putting a call in to the dealership next month when my list of quirks is ready. Not that this helps you with a fix, but now you know you aren't alone.

No problem with mine. The first gallon tends to stay "stuck" for a bit - e.g. it won't show any change until I put on 60 - 75 miles, then settles down. So far two fillups - first was 38 mpg and the second an even 40.0!!! Houston driving including some freeway.

Actually writting this message from the dealership. They tell me that the gas gauge is a known problem and is a simple software update. I have also had some odd noises that they are checking out. Only have 1300 miles on it so far.